CAJ | 학술논문

在工业测控系统中，光电编码器用于测量电机的角位移。由于现场的干扰以及光电编码器的高分辨率的特点，常运用四倍频电路来提高被控电机的测量精度和控制精度。设计基于可编程逻辑器件CPLD ，利用CPLD的可重构性，在系统可编程以及能够实现复杂逻辑功能的特点，设计了光电编码器信号的四倍频电路。测试结果表明，这种方法实用有效，实现了四倍频、鉴相和计数功能，具有成本低、设计灵活的优点，提高了电机的控制精度。
재공업측공계통중，광전편마기용우측량전궤적각위이。유우현장적간우이급광전편마기적고분변솔적특점，상운용사배빈전로래제고피공전궤적측량정도화공제정도。설계기우가편정라집기건CPLD ，이용CPLD적가중구성，재계통가편정이급능구실현복잡라집공능적특점，설계료광전편마기신호적사배빈전로。측시결과표명，저충방법실용유효，실현료사배빈、감상화계수공능，구유성본저、설계령활적우점，제고료전궤적공제정도。
In industrial measurement and control systems ,photoelectric encoder is applied to measure the angular dis‐placement of motor .Since the disturbances on the worksite and the features of high resolution of photoelectric encoder , fourfold frequency multiplication circuit is used to improve the accuracy and precision of motor .This paper presents a fourfold frequency multiplication circuit based on CPLD by using the CPLD characteristics of reconfigurability ,in‐system programmable functions and complex logic functions .The test result shows that this method is practical and effective to achieve the fourfold frequency multiplication ,phase detection and count functions .It improves the control precision of motors with low cost and flexible design advantages .